Science. 1972 Dec 8;178(4065):1092-3. doi: 10.1126/science.178.4065.1092.
Obsidian from two sources in highland Guatemala has been found at 23 sites of the Classic Mayan civilization, mainly in the nonvolcanic lowlands to the north. The distribution, together with trade routes suggested by topography and documentary sources, suggests efficient waterborne transport and competition between sources for the lowland market.
在危地马拉高地的两个来源地的黑曜石已在 23 个经典玛雅文明遗址中被发现,主要位于北部非火山低地。其分布情况,以及地形和文献资料所提示的贸易路线,表明存在高效的水上运输和不同来源地对低地市场的竞争。